Warmer Pliocene Upwelling Site SST Leads to Wetter Subtropical Coastal Areas: A Positive Feedback on SST

Fu, Minmin; Cane, Mark A.; Molnar, Peter; Tziperman, Eli

doi:10.1029/2021pa004357

i

Warmer Pliocene Upwelling Site SST Leads to Wetter Subtropical Coastal Areas: A Positive Feedback on SST

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2022
By Fu, Minmin ; Cane, Mark A. ; Molnar, Peter ; ...

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Journal Title:

Paleoceanography and Paleoclimatology
Personal Author:

Fu, Minmin ; Cane, Mark A. ; Molnar, Peter ; Tziperman, Eli
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

The early-to mid-Pliocene (5.3–3 Ma), characterized by warmer temperatures and similar CO2 concentrations to present day, is considered a useful analog for future warming scenarios. Geological evidence suggests that during the Pliocene, many modern-day desert regions received higher levels of rainfall and supported large perennial lakes and wetter vegetation types. These wetter conditions have been difficult to reconcile with model predictions of 21st century drying over most subtropical land regions. Using an atmospheric General Circulation Model, we show that underestimates of Pliocene rainfall over certain areas in models may be related to insufficient sea surface temperature (SST) warmth simulated over relatively local
Keywords:

Atmospheric Science Oceanography Paleontology
Source:

Paleoceanography and Paleoclimatology, 37(2)
DOI:

https://doi.org/10.1029/2021pa004357
ISSN:

2572-4517 ; 2572-4525
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Rights Information:

Other
Compliance:

Library
Main Document Checksum:

urn:sha256:cf95c73ad3f8390ed8f7500564639973bc6d9d9ffaed6566aa5bcdb467b15e82
Download URL:

https://repository.library.noaa.gov/view/noaa/53205/noaa_53205_DS1.pdf
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[PDF - 21.87 MB ]

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